Fluidic Full Adder

This is pure fluid full adder(a component of a computer which adds two numbers together), it was "ripped" from the following patent:
http://www.google.com/patents?id=fmRiAAAAEBAJ&zoom=4&dq=fluidic%20adder&pg=PA3#v=onepage&q&f=false

It is not designed for high speed operation and the output ports are probably not impedance matched. It is highly recommended that output be amplified as this circuit contains a great deal of "passive" elements(no integral fluidic amplifiers).

It has been printed, but it has not been tested.